I would expect the basic model to have 4 Tuners, with a 6 Tuner premium model available at a higher price. 2 Tuners just isn't enough anymore, especially if I have to pad shows, and particularly during primetime.

As for storage, the basic model should be at least 2 TB, with the premium model at 4-6 TB. Why so much storage?

1. You can record everything in HD. No more recording shows in SD to conserve space.

2. You can go out of town for a week or two, unlike with my [45 Hour] Premiere which I can't leave for more than 24 - 48 hours before it gets full and starts deleting stuff.

3. Each step up in capacity adds very little cost, while adding significant capacity. If you start with a 500 GB HDD, going to 1 TB will double the capacity for only $20 more, 2 TB will quadruple the capacity for only $50 more, and 3TB will give you 6 times the capacity for only $70 more. In fact, using anything smaller than 2-3 TB is simply wasting money [on a per GB basis]:

I'd like, but don't expect, the ability to add a BluRay Accessory like the hard drive, to add the ability to play BluRay, preferably with the easy to use Tivo interface. I wouldn't do it to save money, my BluRay player plays Network media and Netflix discs for stuff not available to stream... Integrating it with Tivo would be neat... would also bring me extremely close to not needing fancy receivers/switches, because everything would be in my Tivo.

Maybe that would be a niche accessory, maybe not. Optical discs may be on the way out, but they aren't gone yet...

I am guessing that the Stream/Transcoding device will NOT be a part of Series 5, I'd be shocked if they were to create a piece of hardware that will be obsolete so quickly (I'd expect in 6), but who knows, maybe it will live on since old Tivos live on long beyond their expected life.

I think the next Tivo (Series 5) should have built in wi-fi. You shouldn't have to pay $60 for a separate device.

I don't think you will see built in WiFi. TiVo really wants you to be using a wired solution. The Stream is wired only and I believe they want you to use a wired solution to stream from a Premiere to another Premiere or to the up coming mini.

I think the next Tivo (Series 5) should have built in wi-fi. You shouldn't have to pay $60 for a separate device.

The Premiere 4's already support MoCA which many report is easy to setup and few issues. They also function as a MoCA to wired Ethernet bridge so if one Tivo can be plugged into Ethernet, it's all wired.